This answer quotes ChatGPT
Based on the error message you provided, it appears that you are missing the PyQt4 module, causing labelImg to not open.
It is recommended that you try to reinstall PyQt4. You can install PyQt4 in Anaconda by running the following command:
conda install pyqt=4
If problems occur during installation, you can also try installing PyQt4 using pip, with the following command:
pip install PyQt4
If you have an older version of Anaconda, you may want to update conda:
before installing it.conda update conda
If the above methods do not solve the problem, you can consider uninstalling and reinstalling labelImg, or you can try using another version of labelImg.
